An electrical connector includes a grounding terminal, a signal terminal and an insulating body. The grounding terminal has an annular body. The annular body is formed by curling and has a seam. The seam extends to form at least one grounding pin. The signal terminal has a base located below the annular body. The base has one end provided with a soldering portion and the other end extending upwards to form a contact portion in the center of the annular body, and the base does not overlap a projection of the seam on a plane where the base locates. The insulating body wrapps the grounding terminal and the signal terminal, and the grounding pin and the soldering portion protrude out of the insulating body.
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1. An electrical connector, comprising:
a grounding terminal having an annular body, wherein the annular body is curled to form a seam, and the seam extends to form at least one grounding pin;
a signal terminal having a base located below the annular body, wherein the base has one end provided with a soldering portion and the other end extending upwards to form a contact portion in the center of the annular body, and the base does not overlap a projection of the seam on a plane where the base locates; and
an insulating body, configured to retain the grounding terminal and the signal terminal.
2. The electrical connector according to
3. The electrical connector according to
4. The electrical connector according to
5. The electrical connector according to
6. The electrical connector according to
7. The electrical connector according to
8. The electrical connector according to
9. The electrical connector according to
10. The electrical connector according to
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This non-provisional application claims priority under 35 U.S.C. §119(a) on Patent Application No. 201220346790.5 filed in P.R. China on Jul. 18, 2012, the entire contents of which are hereby incorporated by reference.
Some references, if any, which may include patents, patent applications and various publications, may be cited and discussed in the description of this invention. The citation and/or discussion of such references, if any, is provided merely to clarify the description of the present invention and is not an admission that any such reference is “prior art” to the invention described herein. All references listed, cited and/or discussed in this specification are incorporated herein by reference in their entireties and to the same extent as if each reference was individually incorporated by reference.
The present invention relates to an electrical connector, and more particularly to a radio frequency (RF) electrical connector.
Currently in the industry, a common RF connector, such as one that was disclosed in US Patent Publication No. US2011/0275243, generally includes a grounding terminal and a signal terminal. The grounding terminal comprises an annular body. The annular body is formed by curling and has a seam. Each of two sides of the seam respectively extends to form a grounding pin at a position spaced apart from the seam by a certain distance. The signal terminal has a base. The base has one end provided with a soldering portion and the other end extending upwards to form a contact portion in the center of the annular body. The base is located below the annular body and overlaps a projection of the seam, and the base is disposed between the two grounding pins and coplanar with the grounding pins.
Since the base is located right below the seam, a sufficient clearance needs to be provided between a bottom edge of the annular body and the base in order to prevent contact of the bottom edge of the annular body with the base. The clearance also provides sufficient plastic for wrapping the seam by insert molding, so as to prevent cracking of the seam during insertion of a mating connector or under an external force.
However, as electronic products are currently developing towards light, thin and small structures, it is inevitable that the overall height of the connector needs to be reduced accordingly. Therefore, the thickness of the insulating body will be reduced, and the clearance between the bottom edge of the annular body and the base will be reduced, so that the annular body is very likely to contact the signal terminal, causing short circuit. In addition, the thickness of plastic for wrapping the seam is also reduced, such that cracking or deformation of the seam easily occurs during insertion of a mating connector or under an external force.
Therefore, a heretofore unaddressed need exists in the art to address the aforementioned deficiencies and inadequacies.
In one aspect, the present invention is directed to an electrical connector that is capable of preventing contact of the grounding terminal with the signal terminal and cracking of the seam.
In one embodiment according to the present invention, an electrical connector includes a grounding terminal, a signal terminal and an insulating body. The ground terminal includes an annular body. The annular body is formed by curling and has a seam. The seam extends to form at least one grounding pin. The signal terminal has a base located below the annular body. The base has one end provided with a soldering portion and the other end extending upwards to form a contact portion in the center of the annular body. The base does not overlap a projection of the seam on a plane where the base locates. The insulating body wrapps the grounding terminal and the signal terminal, and the grounding pin and the soldering portion protrude out of the insulating body.
Further, the grounding pin is disposed at the seam.
Further, a side surface of the grounding pin is aligned with a side edge of the seam.
Further, the grounding terminal and the signal terminal are insert molded in the insulating body.
Further, a clearance is provided between the base and a bottom edge of the annular body.
Further, the base is provided with at least one through hole, and the through hole is filled up with the insulating body.
Further, the contact portion has a hollow cavity, at least one recess is located at a position on the contact portion adjacent to the base, and the recess is in communication with the hollow cavity.
Further, two grounding pins are located at two sides of the seam.
Further, the bottom edge of the annular body is provided with at least one retaining foot, and the retaining foot is buried in the insulating body.
Further, the bottom edge of the annular body is provided with a notch, and the notch is disposed corresponding to the base.
As compared with the related art, the present invention, among other things, has the following advantages and beneficial effects.
The annular body of the grounding terminal is formed by curling and has a seam, the bottom edge of the annular body extends to form at least one grounding pin, the signal terminal has a base located below the annular body, and the base does not overlap the projection of the seam on a plane where the base locates, so that in the case where the overall height of the connector is reduced, it can ensure that a great thickness is buried in the insulating body at the seam, and that a great clearance is provided between the base and the annular body located above the base, thereby preventing contact of the grounding terminal with the signal terminal.
These and other aspects of the present invention will become apparent from the following description of the preferred embodiment taken in conjunction with the following drawings, although variations and modifications therein may be effected without departing from the spirit and scope of the novel concepts of the disclosure.
The accompanying drawings illustrate one or more embodiments of the invention and together with the written description, serve to explain the principles of the invention. Wherever possible, the same reference numbers are used throughout the drawings to refer to the same or like elements of an embodiment, and wherein:
The present invention is more particularly described in the following examples that are intended as illustrative only since numerous modifications and variations therein will be apparent to those skilled in the art. Various embodiments of the invention are now described in detail. Referring to the drawings, like numbers indicate like components throughout the views. As used in the description herein and throughout the claims that follow, the meaning of “a”, “an”, and “the” includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein and throughout the claims that follow, the meaning of “in” includes “in” and “on” unless the context clearly dictates otherwise. Moreover, titles or subtitles may be used in the specification for the convenience of a reader, which shall have no influence on the scope of the present invention.
Referring to
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Based on the above, the electrical connector 100 of the present invention, among other things, has the following advantages and beneficial effects.
(1) Since the base 21 does not overlap the projection of the seam 12 on a plane where the base 21 locates, the seam 12 extends to form the grounding pins 13, and the height of the grounding pins 13 and the seam 12 buried in the insulating body 3 is equal to the thickness of the insulating body 3, the seam 12 can be stably retained in the insulating body 3, so that cracking or deformation of the seam 12 will not occur during insertion of a mating connector or under an external force.
(2) The configuration of the notch 17 provides a sufficient clearance D between the base 21 and the bottom edge 14 of the annular body 11 located above the base 21, thereby preventing contact of the grounding terminal 1 with the signal terminal 2.
(3) Since the retaining feet 18 are buried in the insulating body 3, the retaining force between the grounding terminal 1 and the insulating body 3 can be enhanced.
The foregoing description of the exemplary embodiments of the invention has been presented only for the purposes of illustration and description and is not intended to be exhaustive or to limit the invention to the precise forms disclosed. Many modifications and variations are possible in light of the above teaching.
The embodiments are chosen and described in order to explain the principles of the invention and their practical application so as to activate others skilled in the art to utilize the invention and various embodiments and with various modifications as are suited to the particular use contemplated. Alternative embodiments will become apparent to those skilled in the art to which the present invention pertains without departing from its spirit and scope. Accordingly, the scope of the present invention is defined by the appended claims rather than the foregoing description and the exemplary embodiments described therein.
Li, Yao, Tsai, Shang Ju, Yuan, Yan Xian
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Sep 12 2012 | TSAI, SHANG JU | LOTES CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 028956 | /0969 | |
Sep 12 2012 | YUAN, YAN XIAN | LOTES CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 028956 | /0969 | |
Sep 12 2012 | LI, YAO | LOTES CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 028956 | /0969 | |
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